diff --git a/frequence_process.py b/frequence_process.py
index 5d07d28..079ce1a 100644
--- a/frequence_process.py
+++ b/frequence_process.py
@@ -9,7 +9,7 @@ def process_with_map():
     timing = beatmap.timing_points[0]
     bpm = timing.bpm
     offset = timing.offset.total_seconds() * 1000
-    data = sound_process.process_song(beatmap.audio_filename, bpm, offset0=offset)
+    data = sound_process.process_song(beatmap.audio_filename, bpm, offset0=offset, n_iter_2=48)
     
     timings, amplitudes, freqs = [x[0].total_seconds() for x in data], [x[1] for x in data], [x[2] for x in data]